package java学习.第18章_JDK8_17新特性;

public class JDK9之String结构 {
    public static void main(String[] args) {

        /**
         * 内部 由  char[]  -->   byte[]
         */
        String s = new String();
        StringBuffer stringBuffer = new StringBuffer();
        StringBuilder stringBuilder = new StringBuilder();
    }
}
